pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-25821-4181_Colonel_Baird.ps) >>/Users/jc/w/tmp/Tune-25821-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gow/CSR/4181_Colonel_Baird.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_25821.log 285735 Log file, useful mostly for debugging
Tune-25821-4181_Colonel_Baird.abc 1306 ABC music file with the extracted tune(s)
Tune-25821-4181_Colonel_Baird.ps 41800 PostScript
Tune-25821-4181_Colonel_Baird.txt 1306 Plain-text file with the extracted tune(s)
Tune-25821-get.log 6065 Log file, useful mostly for debugging
These files should be available for 24 hours.